i:\ii\m n i'i: 0] 



' ! 



Extreme length 



ischyiac tuberositii - 



Breadtl) a1 acetabula 



Distance between innominate bones at posterior upper border 







Distance between the most diverging points of the suprailiac 



bordi 



between the most convergent points of the supra- 

 iliac border (above) 



Greatest breadth of innominate bone 



Height at anterior end of pubic symphysis 



fl 



L02 



7") 

 62 



34 



13 

 36 

 W 



Hi) 

 83 



W 



ITS 

 132 



lL'L' 



61 

 61 

 62 



Femur (pi. [, figs. 5 — 10). — The greal trochanter rises slightly above 

 the bead of the femur, instead of being on a level with or slightly below 

 it, as is usually the case in the Canidce, and the lesser trochanter forms a 

 \>t\ prominent conical point fully _' ' in length. The well-marked ridge 

 bounding the outer border of the head is situated on the median line of the 

 shaft, and in line with the inner crest of the greater tuberosity. The 

 cavity al the top of the shaft is thus uearly concealed when viewed from 

 behind, while the head occupies one-half of the diameter of the shaft 

 in-lead of one-fourth to one-third as in the dog, wolf, and fox (pi. I. fig. •">). 

 The posterior surface of the proximal end of the shaft thus presents an 

 appearance widely different from what ordinarily obtains in the Canidcs. 

 The distal extremity descends obliquely, the trochlear portion having an 



extension posteriorly beyond the lii f the posterior border of the shaft 



equal to nearly twice the antero-posterior diameter of the shaft, instead 



of merely equaling it as in tl ther forms with which the present species 



is here compared. The condyles are narrower and less widely separated 

 by the intercondylar notch; the trochlear articular surface is also narrow, 

 prolonged, and looks more directly forward. The shaft immediately above 

 the condyles has it- posterior face greatly expanded and deeply hollowed. 

 In other respects the femur is noteworthy onlj for its shortness and con- 

 sequent stoutness of form. This feature becomes a striking one when the 

 femur is considered in relation to the pelvis, which it onlj barely equals in 

 length instead of greatlj exceeding. In the fox the ratio of the length of 

 the pelvis to thai of the femur is as 71 to LOO; in the coyote, the I mil terrier. 



